Reliance Bigtv — pre booking amount is not still refunded by them... very shameful

I purchased prebooking big tv with rs500 unfortunately assuming that's it's jio product. And after i submitted many complaints to customer care and on their mail i'd. They were done fake promises to me. Your money will refunded within 2 weeks. They take my all bank details. And now 2 years has gone and their customer care no is off.. And on support mail i'd. I am not getting any response since they promised last time to refund my money.

This is very shameful to them that big industries are making fool of customers and collecting money. That's why our economy is going down due these types of leakage.
Bloody fraud people.